While being in the lock screen, the mouse is very slow and feels like a rubber band (maybe because of a delay). This behaviour does not occur in the login screen after booting, but only in the lock screen. Once logged in, the mouse will behave normal again.
user@linux:~$ journalctl -u io.elementary.greeter
-- Logs begin at Sun 2020-12-13 08:31:21 CET, end at Wed 2020-12-30 11:12:53 CET. --
-- No entries --
lightdm
(This is the exact time frame between ⌘+L and successfully logging in)
Dec 30 11:15:11 linux lightdm[6168]: PAM unable to dlopen(pam_kwallet.so): /lib/security/pam_kwallet.so: cannot open shared object file: No such file or di
Dec 30 11:15:11 linux lightdm[6168]: PAM adding faulty module: pam_kwallet.so
Dec 30 11:15:11 linux lightdm[6168]: PAM unable to dlopen(pam_kwallet5.so): /lib/security/pam_kwallet5.so: cannot open shared object file: No such file or
Dec 30 11:15:11 linux lightdm[6168]: PAM adding faulty module: pam_kwallet5.so
Dec 30 11:15:11 linux lightdm[6168]: pam_unix(lightdm-greeter:session): session opened for user lightdm by (uid=0)
Dec 30 11:15:11 linux lightdm[6290]: PAM unable to dlopen(pam_kwallet.so): /lib/security/pam_kwallet.so: cannot open shared object file: No such file or di
Dec 30 11:15:11 linux lightdm[6290]: PAM adding faulty module: pam_kwallet.so
Dec 30 11:15:11 linux lightdm[6290]: PAM unable to dlopen(pam_kwallet5.so): /lib/security/pam_kwallet5.so: cannot open shared object file: No such file or
Dec 30 11:15:11 linux lightdm[6290]: PAM adding faulty module: pam_kwallet5.so
Dec 30 11:15:11 linux lightdm[6290]: pam_succeed_if(lightdm:auth): requirement "user ingroup nopasswdlogin" not met by user "edgar"
Dec 30 11:15:19 linux lightdm[912]: Failed to flush data to greeter: Broken pipe
Dec 30 11:15:19 linux lightdm[912]: ../../../../glib/giounix.c:410Error while getting flags for FD: Bad file descriptor (9)
Dec 30 11:15:19 linux lightdm[912]: Invalid file descriptor.
Dec 30 11:15:19 linux lightdm[912]: Invalid file descriptor.
Dec 30 11:15:19 linux lightdm[912]: Error flushing string: Bad file descriptor
Dec 30 11:15:19 linux lightdm[912]: Error: can't open /lib/modules/5.4.0-58-generic/updates/dkms
/var/log/gpu-manager.log
user@linux:~$ cat /var/log/gpu-manager.log
log_file: /var/log/gpu-manager.log
last_boot_file: /var/lib/ubuntu-drivers-common/last_gfx_boot
new_boot_file: /var/lib/ubuntu-drivers-common/last_gfx_boot
can't access /opt/amdgpu-pro/bin/amdgpu-pro-px
Looking for nvidia modules in /lib/modules/5.4.0-58-generic/updates/dkms
Looking for amdgpu modules in /lib/modules/5.4.0-58-generic/updates/dkms
Is nvidia loaded? yes
Was nvidia unloaded? no
Is nvidia blacklisted? no
Is intel loaded? no
Is radeon loaded? no
Is radeon blacklisted? no
Is amdgpu loaded? no
Is amdgpu blacklisted? no
Is amdgpu versioned? no
Is amdgpu pro stack? no
Is nouveau loaded? no
Is nouveau blacklisted? yes
Is nvidia kernel module available? no
Is amdgpu kernel module available? no
Vendor/Device Id: 10de:13c2
BusID "PCI:1@0:0:0"
Is boot vga? yes
Skipping "/dev/dri/card0", driven by "nvidia-drm"
Skipping "/dev/dri/card0", driven by "nvidia-drm"
Skipping "/dev/dri/card0", driven by "nvidia-drm"
Skipping "/dev/dri/card0", driven by "nvidia-drm"
Does it require offloading? no
last cards number = 1
Has amd? no
Has intel? no
Has nvidia? yes
How many cards? 1
Has the system changed? No
Single card detected
Nothing to do
Platform Information
Software
elementaryOS 5.1 Hera
pantheon-greeter/bionic,now 5.0.2+r1081+pkg67~ubuntu5.1.3.1 amd64 [installed,automatic]
Pantheon Login Screen
nvidia-utils-455/bionic,now 455.45.01-0ubuntu0.18.04.1 amd64 [installed,automatic]
NVIDIA driver support binaries
imwheel/bionic,now 1.0.0pre12-12 amd64 [installed]
program to support non-standard buttons on mice in Linux
user@linux:~$ uname -a
Linux linux 5.4.0-58-generic #64~18.04.1-Ubuntu SMP Wed Dec 9 17:11:11 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
What Happened
While being in the lock screen, the mouse is very slow and feels like a rubber band (maybe because of a delay). This behaviour does not occur in the login screen after booting, but only in the lock screen. Once logged in, the mouse will behave normal again.
Booting
https://www.youtube.com/watch?v=4hXbpTz2jdM
Lock Screen (
⌘+L)https://www.youtube.com/watch?v=ugydAHgmJFw
Logs
elementary/greeter
lightdm
(This is the exact time frame between
⌘+Land successfully logging in)/var/log/gpu-manager.log
Platform Information
Software
elementaryOS 5.1 Hera
Mouse Settings
Pointer acceleration: None Natural scrolling: Off
Hardware
NVIDIA GTX 970